Implantable sub-cutaneous double chamber



FIG. 1 is a top plan view showing my new design;

FIG. 2 is a left side view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a front end view thereof;

FIG. 5 is a rear end view thereof; and,

FIG. 6 is a bottom plan view thereof.

The ornamental design for an implantable sub-cutaneous double chamber, as shown and described. 